Davit tackle-block.



J. T. BELL.

DAVIT TACKLE BLOCK.

APPLICATION rum MAYII, 1912.

Patented Sept.23,1913.

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JOHN T. BELL, OF SAN FRANCISCO, CALIFORNIA.

DAVIT TACKLE-BLOCK.

Specification of Letters Patent.

Patented Sept. 23, 1913.

Application filed May 11, 1912. Serial No. 696,719.

To all whom it may concern:

Be it known that 1, JOHN T. BELL, a citizen of the United States,residing at San Francisco, in the county of San Francisco and State ofCalifornia, have invented a new and useful Davit Tackle- Block, of whichthe following is a specification in such full and clear terms as willenable those skilled in the art to construct and use the same.

This invention relates to a davit hook and its object is to produce ahook which will release the boat therefrom as soon as the boat touchesthe water.

It will be understood by those skilled in the art that whenever a boatis suspended from the ordinary davit hook that it is quite a difiicultmatter to release the boat from the hook when the boat strikes the waterbecause the hook will not let go of its own accord, but must be removedfrom the ring by which it is connected with the boat by hand. This issometimes the cause of capsizing the boat, and at best in a heavy sea itis a dangerous matter.

WVith the invention herein disclosed all danger of capsizing the boat,or failure to get the same loose from the davit block is obviated sincethe block releases the boat as soon as the weight is released therefrom.

In the drawings in which the same numeral of reference is applied to thesame portion throughout the several views, Figure 1 is a side elevationof the davit block showing this hook applied thereto, Fig. 2 is anelevation of the davit block and hook at right angles to Fig. 1, andFig. 3 is an elevation of the davit hook and block showing the hook inthe position it occupies when the weight carried thereby has beenreleased therefrom.

The numeral 1 represents the ordinary pulley block within which is theusual pulley wheel 2. At the lower end there is a supporting iron 3 forthe davit hook 4:, and at the upper end there are two cars 5 and 6 forseeming one of the parts of the rope adequately to the block, a pin 7being used to connect the block and rope.

The davit hook is circular as indicated at 8 and it has a weightedhandle 9, which lies closely adjacent the side of the block when thehook is weighted with the load it is intended to carry.

In operation the hook hangs as indicated in Fig. 2 when loaded, but assoon as the boat touches the water and releases its weight from theblock, the hook will fall down into the position shown in Fig. 3 andwill permit the escape therefrom of the boat ring. If, for any reason,the hook should not at once release itself from the boat it is a veryeasy matter to pull down the handle 9 and compel it so to do.

Having thus described my invention what I claim as new and desire tosecure by Letters Patent of the United States, is as follows:

A davit tackle block comprising a block, a pulley wheel carried thereby,a rope securing pin above the block, and a pivoted hook secured to theblock below the pulley on an axis at right angles to the pulley axis,said hook having a portion inclining upwardly to the side of the bottomof the block and a handle portion terminating in a ring extending alongthe side of the block and in contact therewith parallel to the plane ofmovement of the pulley, said ring being above the pulley axis,substantially as described.

In testimony whereof I have hereunto set my hand this 20th day of April,A. D. 1912, in the presence of the two subscribed witnesses.

JOHN T. BELL.

Witnesses C. P. GRIFFIN, L. H. ANDERSON.

Copies of this patent may be obtained for five cents each, by addressingthe Commissioner of Patents, Washington, D. G.

